Havent heard of that before, the ballasts operate on high voltage, it could be throwing some sort of interference with the weak radio stations signals. Let me look into this for you.
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07.5 Dodge Ram 3500HD SLT 6.7L,11/06 build,5/08 delivery,PMT,DPF & EGR fell off,G56,4.10 (3.73 soon),C&C,HBS,5000k HID Solutions lights & fogs,14,000 miles to date,37" M/T,22.5's soon,Dyno at 445hp/907tq