Radio started bursting load scratching noise once in a while. Took amplifier (LEAR) out. Noticed small amount of moisture on one of the 3 wire harnesses. Carefully opened amplifier and cleaned small amount of mositure. Put back in and it played for about 30 seconds and stopped working. Purchased another one (used online). Hooked it up and it works for 30 seconds and shuts off. I've heard this means it needs to be reprogrammed. Is this true and is there a way to reprogram it without going to BMW?
Lear amplifier on 2001 BMW X5
by kendkel in Olympia, WA on February 15, 2011
ANSWER by overbys on February 16, 2011
you may have another bad amp. this is why my shop never buys used electronics. there are a lot of auto radio repair shops that can repair your original amp.