How to located bad amps?

[wilburgtwoot 10+ year member]

In my Mach 460 sound system, I believe an amp has gone bad, but I have no clue on how to find out which amp it could be. In my system, I have 2 tweeters/woofers in my doors, and 2 tweeters/woofers in the rear. The only speakers that are not coming on anymore are the 2 woofers in the rear. I am trying to figure out what the problem could be, so any suggestions you guys might have would be greatly appreciated.

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[SATX210]

amps are mounted to rear deck from the trunk side.

 

[azbass 5,000+ posts]

honestly., id rip all that out, and get aftermarket amps speakers. than fixing stock

 

[wilburgtwoot 10+ year member]

Sounds good, but this is a price issue for me. I can't afford to buy all new amps, speakers, have them installed, etc. I'd rather just fix the amp that messed up and keep the stock system in there, seems like less trouble.