I have an idea for a project where I want to pass a line level signal through my electric guitar.
The idea is to have a 3.5mm jack input on my guitar, to which I can input a line level signal. Then I want this signal to go through the guitar lead and into my amp. I also need to be able to play guitar at the same time, so this signal also needs to go to the amp.
My initial concerns are that the line level signal will be far too hot for the amp, and that also the signal might interfere with the pickups, so may need to be isolated somehow (sorry, it's been many years since I dabbled in electronics).
Also, I realise that this will sound terrible - this isn't so I can jam along with my iPhone, its for some specific weird effects.