There are in fact two problems using those splitters...
One is total current,, Now that likely will NOT be a problem but the dash oulet is liekly good for 10 amps max,, Perhaps a bit more.. The splitter can "Split" around 5-7 safely, then the plug starts to melt on many of 'em.
The second is the outlets.. They do not hold plugs well and can be a real pain in the operating system.
Alas, no simple way around that.
I do use some power distribution strips (need to workon one in fact) around here but they use a different connector that works much better.
