2 head units to diode or not to diode?

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Copper - Posts: 121

Joined: October 27, 2008

Location: Nova Scotia, Canada

Posted: March 02, 2009 at 7:03 AM / IP Logged

I just picked up a dvd deck for my truck. i currently have a cd headunit in there now. would it be ok to install the dvd one the same way as the existing head unit? i have no intentions in running both at the same time, i was just wondering if the speaker out put of one, would interfere or hurt the out puts of the cd deck while it's not in use.

Thanks

i am an idiot

Platinum - Posts: 13,694

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: March 02, 2009 at 7:22 AM / IP Logged

Diodes will not work in this application. Does one or the other units have an Aux Input set of RCA jacks? You will need to use relays to isolate the speaker wires or feed one unit's rca output into the other unit's rca input, and connect the speaker wires to the unit that has the aux input.

coolen

Copper - Posts: 121

Joined: October 27, 2008

Location: Nova Scotia, Canada

Posted: March 02, 2009 at 7:24 AM / IP Logged

both decks have rca in's and outs. so is it just as simple as what you just posted? hooking one deck's output to the other decks input? that sounds pretty painless.

haemphyst

Platinum - Posts: 5,054

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Joined: January 19, 2003

Location: Michigan, Bouvet Island

Posted: March 02, 2009 at 7:34 AM / IP Logged

That's the way I'd do it! 2 head units to diode or not to diode? - Last Post -- posted image.

It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

coolen

Copper - Posts: 121

Joined: October 27, 2008

Location: Nova Scotia, Canada

Posted: March 02, 2009 at 11:57 AM / IP Logged

well, unfortunatley i was wrong on one thing. the current deck that is in my truck does not have rca in's. so i guess my only option would be to wire up the dvd deck as the main headunit. does that sound right?

i've got a jvc kd-320, installation manual here: http://resources.jvc.com/Resources/00/00/93/GET0349-002A.pdf

the dvd deck has many many rca's on it.

coolen

Copper - Posts: 121

Joined: October 27, 2008

Location: Nova Scotia, Canada

Posted: March 02, 2009 at 2:04 PM / IP Logged

from what i've been reading, i can hook up this other deck as usual, only if the other is turned off when it's in use? the big question is always why- so i'll take the time to answer that. the existing jvc deck is there to play mp3's. it is also hooked up to my amp to run 2 -10 '' subs, and sounds great! this other decks main use will be for the screen. not only that, but it also has an USB port. the jvc does not.

thanks

i am an idiot

Platinum - Posts: 13,694

Joined: September 21, 2006

Location: Louisiana, United States

Posted: March 02, 2009 at 4:27 PM / IP Logged

Cool let me give you shipping info for when it or they quit working. I will be happy to repair them for you.

coolen

Copper - Posts: 121

Joined: October 27, 2008

Location: Nova Scotia, Canada

Posted: March 02, 2009 at 4:44 PM / IP Logged

oh thanks, that would be great!

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2 head units to diode or not to diode?

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