amp wiring location for mitsubishi

:errr:i'm a newbie at this so please have patience with me.. i'm trying to install an amp in my 90 eclipse and am not sure where to penetrate the firewall to run an 8 gauge power wire. for any folks who have done this on similar car, where did u take your wire thru? an existing hole/location in firewall or did u drill a new hole? if u did drill, where would u suggest to penetrate to avoid any damage or problems??

i'm assuming since my battery is on passenger side & amp will be as well, that is the best side to run power wire thru right?

thanks for your help!

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kj

Hey, not familiar with that particular car, but is there room to just make a small cut in the gromet around the steering column? Thats what i usually do on older cars and its real easy to penetrate that.

kahlilj wrote:

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i'm a newbie at this so please have patience with me.. i'm trying to install an amp in my 90 eclipse and am not sure where to penetrate the firewall to run an 8 gauge power wire. for any folks who have done this on similar car, where did u take your wire thru? an existing hole/location in firewall or did u drill a new hole? if u did drill, where would u suggest to penetrate to avoid any damage or problems??

i'm assuming since my battery is on passenger side & amp will be as well, that is the best side to run power wire thru right?

thanks for your help!

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Ok this maybe a newbie question but what the heck is a firewall.
 I PROBABLY ALREADY WHAT IT IS but not know the TERM for it. SO what is a firewall?

Ok, to answer your question:
The battery is on the passenger side. so your best bet is to drill a hole if there is not already one.  im not sure where though but make sure its away from any moving parts or hot parts as well.

The amp does not neccarassararrily have to be on the same side . it'd be great if the wire is not so long though. 
so yes run your power wire through along with your REMOTE WIRE.

Then run the RCA wires on the driver side.

A firewall is the wall that seperates the passengar compartment from the engine compartment. Alot of times it's easier to run the power wire on the drivers side. Your remote wire can run with your rca cables and not cause any noise problems. It's fine running with your power wire also.

ok for a honda civic 95
The battery is on the passenger side.
so what your saying is that i should run the wire across to the driver side?
or do you know the best place to drill a hole?

BangBang wrote:

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ok for a honda civic 95
The battery is on the passenger side.
so what your saying is that i should run the wire across to the driver side?
or do you know the best place to drill a hole?

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Not neccesarily, I just find that there is usually a hole already there or is easier to drill on the drivers side. Every car and truck is different, so just look around inside for the best route.

thanks guys. well last nite after giving up on finding an existing hole to run power wire thru, i drilled a couple of pilots holes.  i say couple because the the 1st hole i drilled (from the interirorpassenger side footwell area) did not show up in the engine compartment!!  i used a small bit size (~5/32" or so) and drilled right thru.  poked a hanger wire thru  at least 10" or so; looked in the engine compartment for it, but could not see it!!    

i am not sure if the hole was drilled in some pocket on the engine side of the firewall or what.  i'm pretty sure it did not go in the tire well area tho.  ...????

anyway i drilled another hole closer to the center of the car & slightly lower, but  SAME RESULT!!!???  i have no idea where this hole leads to. i saw NOTHING in the engine side even after poking hnager wire several inches thru.  what gives!?!?!?!  i feel like a dummy or something.  this should not be that hard!

i located what i thought was a clear area in engine compartement side just below battery level and its corresponding side in the interior; drilled and got nothing.  has anyone ever done this on an eclipse before??  or can someone please tell me how YOU determine the best area to drill thru firewall?    please help!! 

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kj

Try looking for an area inside of the engine compartment to drill through (try to guess where the spot is inside the vehicle also before you drill). Usually there is room for a hole on the drivers side, on the left side of the steering column. Just keep lookng, and dont drill through anything.

customsuburb wrote:

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Try looking for an area inside of the engine compartment to drill through (try to guess where the spot is inside the vehicle also before you drill). Usually there is room for a hole on the drivers side, on the left side of the steering column. Just keep lookng, and dont drill through anything.

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that's what i did.  unfortunately i must have been misaligned.  i even used a tape measure to get the vertical height (from the ground).  took that same tape and placed it in engine side on the ground to ensure it was about the same vertical height. but it seems myabe my horizontal distance was off??  any suggestions on how to locate the exact location when its only one person?

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kj

Well... about all I can think of is to look for things (like hoses or wiring harneses) that go through the firewall and try to find the location of those inside the vehicle also and then drill a hole.

I used to have one of these cars.  I ran my power wire through the spedometer cable grommet on the drivers side.  The grommet is big enough to get a power cable through.

only problem i have tmstl, is that i need to run this wire on passenger side.  did uever try running wire on that side?  or know any one with this car or similar who did?

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kj

Ok, if you need to run it across the engine from the passengers to the drivers side, just use wire ties or some sort of tie to harnes the wire to brackets or anything to keep it out of the way. Then instead of drilling holes, simply go through the grommet on the drivers side. The Grommet will surprisingly make a tight seal and you wont get any moisture through there as long as you do it carefully. You can drill all the holes you want, but when your firewall looks like swiss cheese, try the grommet.

thanks folks. i finally got it to work last nite.  it seems the firewall (on the passenger side) is actually two separate walls with an air pocket between them.  this pocket (separation) is what was confusing me. after drilling thru the 1st wall i thought i was (or should be) in the engine bay, but i wasn't i was in this pocket - between the walls. 

the pocket was ~4"  wide. too small for the pilot bit to penetrate, but not too long for my 1/2"  drill bit.  i drilled thru one of the existing holes with this larger bit and VOILA!  came a few inches beneath my battery as i had hoped!   (no swiss cheese result!)

not my only problem is being able to fit a grommet in that wall in the engine bay. it's too far down for me to reach with my hands and i can not access it from the car interior because there is the interior firewall there!  lol...oh well. i might be able to fanagle something to seal it to some degree.

thanks again for all your help.

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kj