Okay I give. I have been searching for detailed info on installing an amp and speakers on a 2013 RG custom. I have ordered the Kappa 62.lli speakers, not adding rears at his time. I am planning on keeping the stock head unit at this time but I will install an amp. What other parts are necessary for the install? Would my stock radio run the kappa's, as they are 2 ohm? Are there any videos out there for the 2013's? All I can find is vid's on newer models. I assume my stock head only has speaker level outs. So I would need an amp that takes speaker level or add a unit to reduce the speaker outs to line level. Thanks in advance for your help.