Will my factory power hookups handle this 447HPC2 or would a cigarette lighter plug work better. Shawn March 15, 2017 18:12 Either one will work, the SR-447HPC doesn't draw more than 10 amps. Related articles Minimum power wire size? 8 or 10 ga? When I talk into the mic it makes all of the gauges on the dash go haywire. Can I power the 655 with a cigarette lighter adapter? How do I turn the SWR Meter on? I have the 447HPC2 and I'm looking for the communication cord. Comments 0 comments Article is closed for comments.