ok i was at work detailing a auction car and we r supposed to yank out all the audio wireing that was left in after some one trades the vehicle in "saying that they had a system in it" but i found this thing, dont know what it is maybe yall can help, its green ya i know good info, its says HIGH POWER P50A, it was connected to the door speaker wires and has amp jacks on it like they would plug into the back of the head unit but it was plugged into this thingy, had the origenal headunit in it, 99 Tahoe. can i use this to hook a sub and amp up in my car with out redueing everythign at one time? wish i could take a picture but no camera

Found a pic

 

gayed it let me post a pic like 3 minutes ago, wtf.

 

That is a line output converter. It converts high voltage speaker signals to a low voltage rca signal.

 

so can i use it as a temperary setup for subs on my mach system?

 

If you really want to. Take a picture of it just so I can make sure.