Arkansas

Pulled my blown Nakamichi from my 92 400 earlier.....part number tag is missing all but last 2 digits. Been looking on ebay for a "new" amp and seen several different part numbers. Can anybody help me out? Last two digits are 20...and on another tag it has B324007896. Tag with parts number has B324ULOA. Amp has been wet is why rest of tag is gone. Cant upload pics because im running on my phone and wont let me.