Fuel pump relays chatter

From : kicker42 u26398 uwe

Q: roy wrote been thinking about one that can be moved from car to truck easily. anybody have any thoughts or opinions based on actual experience tia more costly but i opted for the mopar rec nav stereo. i dont care too much for portable units suction cups cigarette adapter cables etc. i prefer the indash factory look. the rec unit works great. im not a big fan of a bunch of wires either but where 2 vehicles are going to be used portability is a must. the only problem is it locks out many functions while vehicle is in motion. it would be nice if the passenger could be busy looking up routes etc. it would be nice if the passenger would stay awake!g many aftermarket nav units behave the same way. something to look for. thanks miles .