New to the forum. It looks great. I have a 1999 H/R Vacationer / Ford V10 chassis. No slides. 30,000 miles. My problem is: Until recently everything worked fine (it always cranks right up) with nothing to cause any new problems like lightning strikes. My am/fm radio (which is about 3 years old) is wire to the chassis battery (not the house). With the engine running or not running no problems. Once I start the Onan gen. set the radio has a drop in voltage to the point that the stations blink and flash. Also there is a buzzing noise coming through the rear bedroom drivers side speaker. Here is the strange part. When I switch on the aux. start switch that ties the chassis and house batt. together the radio plays fine and the buzzing goes away. When I let off the aux. batt switch it takes about 30 seconds and the radio goes on the frits again. Additionally the same thing happens when it is on shore power. All batt are new. Please help Im leaving on a trip in a 10 days and want to fix this problem.