New amp problem

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chilidog

Member - Posts: 3

Joined: September 15, 2003

Location: United States

Posted: September 15, 2003 at 10:41 PM / IP Logged

I just installed a new amp in my 2000 Tacoma and when I turn the key on there

is a loud thump/pop sound. It just does this once but it does it every time I start up the truck. Any guesses on why this happens? Amp is a MTX 282, HU is a Alpine CDA9807, with 4 Infinity 6.5 speakers. Thanks cd

sonicsound

Copper - Posts: 100

Joined: July 08, 2003

Location: Wisconsin, United States

Posted: September 15, 2003 at 10:50 PM / IP Logged

A couple of questions for you before I make my guess... what is your remote wire hooked up to? The deck or another type of accessory current? If your amp turns on before the actual signal gets to the amp your amp will make that loud thump. But I have only ever used alpine decks for my cars and I have never had that problem. But just to let you know you can hook up that remote wire either to the blue and white wire from the deck or the red wire from the deck. Hope that helps.

Sonic

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ricetech

Copper - Posts: 64

Joined: December 10, 2002

Location: United States

Posted: September 15, 2003 at 10:53 PM / IP Logged

is the amp always on or is it hooked up to the remote wire? i have seen this problem when the amp is always on. other than that check the ground wire you might have a ground loop. also how are you rca's run? remember to avoid factory wiring looms and other areas with high electrical noise potential

chilidog

Member - Posts: 3

Joined: September 15, 2003

Location: United States

Posted: September 15, 2003 at 11:06 PM / IP Logged

the remote wire is hooked up to a grey wire from the factory wiring harness going to the HU. I checked this wire with a test light to make certain that it was only hot when the key is on. the amp is only on when key is in acc/run

italnpimp59

Silver - Posts: 427

Joined: August 26, 2003

Location: United States

Posted: September 15, 2003 at 11:12 PM / IP Logged

i would say check your ground....make sure it is a good connection. and instead of the remote wire to the grey wire, hook it up to the blue/white wire from the head unit or tap it off the red wire.

chilidog

Member - Posts: 3

Joined: September 15, 2003

Location: United States

Posted: September 15, 2003 at 11:21 PM / IP Logged

thanks for the tips so far guys,I will try moving the remote wire and see what happens. let me add that the system sounds great I have no engine noise,static,or any probs at all,just the thump on start up.

Thugstyle

Member - Posts: 22

Joined: May 31, 2003

Location: United States

Posted: September 17, 2003 at 4:04 PM / IP Logged

i have an alpine deck and when i turn my car on i hear a semi loud thump..not pounding tho..but my system works fine..makesure your remote wire is connected good..other than that i duno

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New amp problem

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