combine

I need to combine the external speaker output from my cb (Cobra 75 WX ST 3.5mm mono jack, "The external speaker should have 4-8 ohms impedance and be able to handle at least 4 watts.") with either the 3.5mm output from my phone (into the aux input on head unit) or the rca output from my sony...

Hello I recently bought a MSi GT70 Laptop I see that there are 2 drives in the "My PC" window One is called "OS_install" which is my c drive I guess everything i download goes on here as well One is called "Data" which is my D drive which i used to back up a few games can I combine both these...