Help -Radio cutting out problem

[rkubara]

My 92 SL500 stock radio is cutting out the woofers while the mid and high remain going, it gets worse with volume and is OK at very low volumes. I suspect there is an amp for the woofers. Where is it, how can I check it? Any input is appreciated.
I should also note that sometimes the radio station has a very strange type of static then clears up, separate problem?
Ron

 

[paresh21272]

oops

in my previous cars i had a similar prob, but with my own stereo upgrades
first thing i checked was loose wiring on the subs,
get a voltmetre and see if on the amp you are pulling a clean 12v, if not this cuts the amp on power drains/big basslines. a dirty ground connection is common.

 

[television]

If you have the BOSE system (standard in USA) you will find the amp under the passenger seat.

Malcolm