Fraser Stephens
Member
As to the radio shutting off, see my gallery info per the link below re how I decreased the radio shut down voltage setting from the factory 13.5 volt setting to 11.8 VDC. This was for the radio in my LR3 but I presume the setup is similar for the LR4. I think the radio setting of 13.5 volts was to make certain the computers always had something near 13 volts or you get red lights.
http://www.disco3.co.uk/gallery/displayimage.php?album=34462&pos=16
Is this something that can be changed on an LR4? And if so can it be done without the GAP tool?
Cheers!