WTB: 1999-2000ish Bose Under-Dash Amplifier

[Z71SE]

My left rear and left middle speakers are inoperable. I swapped speakers right to left and the problem persists. I am looking for a good under-dash amp (not the 99-00 Escalade). I am not 100% sure what years these can be found in.

 

[addiction2bass]

i dont think they had amplifiers seperate. think your radio is just bad.