Volvo Repair: 1996 850R Radio interference, ABS light, radio interference, speed sensors

Question
Problem #1
I own a 96 850R. When listening to AM I get major interference as the signal gets weak, like going under bridges and power lines.  This is more noticeable as I get further away from the station.  Eventually, as I am far from the station, all I hear is this masive interference from the wheel speed sensors.  (I know because with the engine in neutral as I slow down,  the noise reduces in frequency). This can't be normal AGC behavior, do I have a antenna grounding problem?

Problem #2
My ABS/TRAC lights keep coming on frequently.  The lights come on just after I feel this brief burst of pulsations in the brake pedal. I have also heard this pulsating noise when I am not steping on the brake.  All braking seems normal, except sometimes this pulsations happen while I am braking at a low speed.  Im I in danger?  Should I ring out the wiring or check for intermittent sensors?
I have all schematics and I am familiar with electronics, just tell me where to connect the multimeter

Thank you so much for your help.

Neo,
Atlanta, GA

Answer
Hello,
For first question the problem is antenna, it should be replaced with new one.
Second question, the problem is ABS Control Module, it should be replaced with new one. When it lights, the ABS does not work. If you want to ABS works everytime replace it.
Regards...