I got this president washington with the 858 chip, Now the rec. is low and I installed one of those 621 pre amps. it helped a little, but not like it was when new. Now I was told the am regulator needs to be replaced because they are a known bug? Where is it? also it is starting to have a modulation glitch, when I key up for the first second or so. they say I sound fuzzy? but after a bit it clears right up? now could that be the audio IC? where is it? there is no cb shops anywhere near me. I am handy with soldering so that isn't a problem? but tuning is? ALSO? is there a way to hard wire in a freq counter in the 858?