Hello I was hoping to get some advice about which way to go on upgrading the sound system on my Road Glide Special. Keep in mind I am a total novice but after some research, here is what I am thinking: I want to do 4 6x9's in the saddle bags, maybe pioneers TSD 6902R or 6900 pro pushed by an alpine PDX F6. For the front I wanted to do Hertz MPX 6.5 Coax or componants. after speaking to a local shop i was told I needed a separate AMP for the front Fairing 6.5 Hertz. Is that true that I need 2 Amps? my budget was that I could not do entire Hertz upgrade so thought to Mix it with the pioneers. Is this a good ideal? Can someone with experience chime in and let me know if I need 2 amps and If what I propose is a good set up? I thank you in advance.