i was wondering about some car audio upgrades

[jbhood171]

yes i would like to wire my aftermarket amp into my system for a signal. i took apart the head unit today and the bose premium sound posed a problem. so i asked around and was told the easiest way was to splice rear speakers. i dont know how to do this though and was wondering if anyone could go through it in steps. i dont really have much money being a high school student working part time and paying for this car so the cheapest way would help also.

[audtatious]

If your amp accepts speaker-level inputs, then all you have to do is tap into the speaker wires. If not, you will need a line-level converter.

[coolhand]

Is this amp being connection to the interior speakers or a sub-Woofer?