Originally Posted by Pioneer74

But if that amp is like any other, the speakers will not get any signal after the power is turned off and you wouldn't hear anything.

Originally Posted by tda69

Over the weekend I was building 12 Volt Power Modules for some HDForums members and naturally two common questions came up. "Do you plan to use the ACC switch on your dash to turn the Module On/Off?" or "are you wiring to the B+ connector (hot) and intend on using an On/Off power switch on the Module itself?" Regardless of what accessory you personally may need to wire, now or in the future both are viable options to power your accessories. For clarification, there are a total of 2 accessory plugs, for those who are unaware. One plug operates off the ACC switch on your dash and the other plug is wired to the B+ connection (hot) and is not operated by a switch. The difference between the two is that the ACC switch will only operate when the ignition is turned on. The other is wired hot and remains on, even when the ignition is turned off.

While at my local HD dealer over the weekend, I purchased two wiring harness adapters and took photos to show you how they work. For your reference they are:

P/N 70270-04 ACCESSORY ADAPTER HARNESS (B+ CONNECTION)
P/N 70264-94A TWO-INTO-ONE WIRING HARNESS ADAPTER (ACC SWITCH)

From the factory as originally equipped your bike (Touring models) has one B+ plug and one ACC plug. However if you purchase either of the two adpaters mentioned above, you can expand your plugs to add more accessories (as shown in the photos).

Picture 1 (0374.jpeg) shows both accessory plugs, the ACC (grey/green) and the B+ (grey). Also pictured is the wiring harness & plug (orange) for my 12 volt Power Module which is controlled by the ACC switch.

Picture 2 (0375.jpeg) shows P/N 70264-94A which expands the one ACC plug to a total of two. This will operate two accessories off the same ACC switch located on your dash.

Picture 3 (0376.jpeg) shows P/N 70270-04 which expands the one B+ plug to a total of three. Since this is a hot circuit that doesn't turn off with your ignition, you need a power switch on whatever accessory you may be using.

Picture 4 (0377.jpeg) shows both adapters plugged in which expands your plugs to a total of five (2 ACC & 3 B+).

Thought I'd share this information since some of you may already be using both plugs and/or were unaware that adapters were available. Hope you found this useful.

Originally Posted by tda69

Over the weekend I was building 12 Volt Power Modules for some HDForums members and naturally two common questions came up. "Do you plan to use the ACC switch on your dash to turn the Module On/Off?" or "are you wiring to the B+ connector (hot) and intend on using an On/Off power switch on the Module itself?" Regardless of what accessory you personally may need to wire, now or in the future both are viable options to power your accessories. For clarification, there are a total of 2 accessory plugs, for those who are unaware. One plug operates off the ACC switch on your dash and the other plug is wired to the B+ connection (hot) and is not operated by a switch. The difference between the two is that the ACC switch will only operate when the ignition is turned on. The other is wired hot and remains on, even when the ignition is turned off.

While at my local HD dealer over the weekend, I purchased two wiring harness adapters and took photos to show you how they work. For your reference they are:

P/N 70270-04 ACCESSORY ADAPTER HARNESS (B+ CONNECTION)
P/N 70264-94A TWO-INTO-ONE WIRING HARNESS ADAPTER (ACC SWITCH)

From the factory as originally equipped your bike (Touring models) has one B+ plug and one ACC plug. However if you purchase either of the two adpaters mentioned above, you can expand your plugs to add more accessories (as shown in the photos).

Picture 1 (0374.jpeg) shows both accessory plugs, the ACC (grey/green) and the B+ (grey). Also pictured is the wiring harness & plug (orange) for my 12 volt Power Module which is controlled by the ACC switch.

Picture 2 (0375.jpeg) shows P/N 70264-94A which expands the one ACC plug to a total of two. This will operate two accessories off the same ACC switch located on your dash.

Picture 3 (0376.jpeg) shows P/N 70270-04 which expands the one B+ plug to a total of three. Since this is a hot circuit that doesn't turn off with your ignition, you need a power switch on whatever accessory you may be using.

Picture 4 (0377.jpeg) shows both adapters plugged in which expands your plugs to a total of five (2 ACC & 3 B+).

Thought I'd share this information since some of you may already be using both plugs and/or were unaware that adapters were available. Hope you found this useful.