2003 blazer amp.

i've got acustomer who wanted an mtx 200 watt amp installed to the factory radio in his 03 blazer i ran power used a switched ig. source for a remote and using a metra 2003t wiring harness for a referance i tapped into the rear speacker outputs right behind the deck and used the high imputs on the amp i've double checked all my connections for pollarity and everything here's what happens when i turn the iggnition on nothing works (at least on tha radio) it turns on and seames to work but there's no audio from any speakers if i unplug the high imputs from the amp the factory systym works normaly and if i plug it back in every thing works (with a slight wine in the subs) untill you turn the iggnition off and then on again at which time the problem repeats itself.at any rate i feel like an iddiot can anyone tell me what i'm doing wrong or if there's another way any help would be appreciated thanx. you will still be here tomorrow but your dreams may not.

What is the amp you added going to be running? You might try tagging the speaker wires going into the door instead of behind the deck.Certified Security Specialist

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