Ok if I put a splitter on a Pre-out that is comming from my headunit will that cause a problem? I had a old headunit that I did that with and down the road a little bit the headunits preamp went out. Does it drop the ohms or something from the preamp to low and cause damage? I know some people say its ok to put a splitter on a preout but others say its bad for a headunit. Whats the judgement guys.