This is video guide How to easy way connect car amplifier or active car subwoofer in home yours. Just Do It Yourself and get more bass in your gaming room DIY. Set Up PSU + install Car Amp/Subwoofer In Home in a few minutes. Up next. Hooking Up Car Audio System To House - Duration. Plug the lead into your ’van first, and the hook-up socket last. If you plug into the hook-up first, the semi-exposed other end will be live • Hook-up sockets and plugs only work when they are pushed fully home. • Buy a mains tester and use it after hooking up your ’van it will check for polarity and earth faults. The type of generator you purchase for your RV will depend on two major things the cost, and the amount of electrical power your RV requires. Once you have the right materials, you can hook up a generator to your RV without much difficulty.