I am installing a Pioneer AVIC-310BT in my girlfriend's 2009 Outlander. Along with the headunit I will be installing a pioneer GEX P920XM XM tuner and a Metra Axxess ASWC Universal Steering Wheel Control...

 

The XM tuner needs continuous power and the steering wheel control needs switched. So to solve this problem I am just going to use these: http://www.posi-lock.com/posiplug.html and tap into the Pioneer's wire harness/metra harness on the correct wires for continuous and switched.

 

My question is for the ground. Both of these items will have the ground wire and I am wondering if I could just use the same tap connectors i just listed to tap the ground into the harness ground wire? I'll probably do the bypass as well to the ground wire so I will have 3 taps into the ground wire on the harness.