Help me figure out this problem...

Background:

7 degrees and snowy
New Galaxy 929
Small linear
4foot fire stick
Both wired directly to battery

Issue(s):

Yesterday when I first start driving, I hear almost nothing on the channel. Very very light static even with squelch down and volume up. If I key the mic, static roars in. This happened on another old radio too... But not the next issue. So they may be separate problems.

Next issue, driving along and all of a sudden I'm getting tons of static... Then my receive pegs all the way to the right and I'm getting some crazy sounds. I turn noise blanker off and it goes away. Turn noise blanker on and receive needle pegs to the right.

Now it's working fine.

Transmit was good the whole time.

Help!