Join Date: Feb 2012
Location: Ft. Lauderdale, Florida
You "can" absolutely install your connection on any fuse point that is switched by ignition. You would want to tap in on the "hot" side of the fuse (the side that still has power with ign on when fuse is pulled)... and then be sure to use an inline fuse to your added wiring. Your fuse needs to be close to the power source, the fuse block. This is fine for small current draws, since the blade contacts are being shared. It is "not the best way" to do it, but it is somewhat adequately safe under light duty applications.
If the circuit you are on pulls 5 amps and has a 5 amp fuse, then adding an additional 5 amps (10 amps total on the output side of the fuse) would certainly blow it. Changing the fuse value to a higher value would not protect the circuit as designed. You need to tap the "hot" side of the fuse, if you go that route.
Try to avoid "glass" inline fuses.. the blade types are more reliable.
For higher current applications, or the more reliable way, it's better to go to the key, or a good connection point directly from the key.
Last edited by Mmusicman; 04-27-2017 at 07:43 PM.