iLO XM-MP3-CD Car Stereo
Problem for iLO XM-MP3-CD Car Stereo

Wiring




By cruz666 on Aug 22, 2007

" "
I have a 4 channel Alpine amp that I have to send back for repair. It was running a set of component speakers (6 1/2" and 1") and a pair of 4x6 plate speakers. Meanwhile so I have tunes I installed an MTX 2 channel amp and ran the speakers parallel. From what I understand this makes it a 2ohm load which the amp is capable of handling. Is this correct? When I first hooked it up I got a noise from the rears even when the deck and amp were turned off. It increased and decreased when I pressed and released the gas pedal. Seems to have gone away now. Any ideas or suggestions? Thanks

Solution #1

posted on Aug 22, 2007
Not Rated)

ampman

Rank: Guru 
Rating: 85%, 91 votes
if you get a buzz or whine noise that changes on acceleration of the engine,,, for some reason your amp is picking up alternator "noise"

the most common cause of this is a corroded/dirty/non bare metal/poor ground connection to the cars chassis form your amp..

recheck your connections and make sure!

Another trick is to run the rca cables on the opposite side of the car as the power wire. Also if your rcas have a small wire in the center DO NOT USE IT FOR A REMOTE WIRE!!! it is meant to be grounded on both ends to eliminate noise.

Also p.a.c.(pacific accessory corporation) makes a noise filter you can put inline betwen your rca cables and the amp. I have had some sccess with that..
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