logic of wiring external speaker

situation:
1) jack for external speaker is on back of my cb radio, which is mounted in the dash (I cannot plug or unplug that audio wire while driving)
2) any time there is a .25" plug plugged into that jack, the internal speaker turns off (even if the plug is not connected to anything)
3) there is no switch controlling internal/external speaker choice.
4) my external speakers are powered by the amp, which is integrated into the radio, which would unnecessarily drain the battery, so I have it connected to switched 12 volt.
5) without the amp, the cb cannot drive the speakers
6) I cannot listen to another source of music (like bluetooth or FM radio) while using the line in (AUX).
problem:
1) if I am listening to my music from my phone on bluetooth, I cannot monitor the CB on external speakers, and the internal is too quiet and to low quality to do the job by itself. Right now, I just use the CB and music alternately, but would like to be able to use both, through the speakers.
2) if the vehicle is off, I can't use external speakers, and would have to reach inside the dash to disconnect the plug to use CB at all. I don't typically reach for the mic when the vehicle is off, so this is the lesser of the two problems.
solutions:
1) wire an additional amp to take input from the cb, give the amp a power switch and wire it onto the non-switched 12v. (best performance answer, high cost, one more object to fit in dash with a lot of extra wiring)
2) give the radio a hard power switch and wire it to non-switched 12 volts (solves problem 2)
3) wire the internal speaker to the external line so that the internal speaker is always on, no matter what (not very elegant, but would mean that the CB could be running with the wire plugged in. (sorta solves problem 1, solves problem 2)
I will probably go with solution #1, but I'm wondering if any of you have ideas or thoughts on this.

 

Too true about the worst logic thing.

The stereo amp:
would be nice to be stereo, I just want to be able to hear it in the first place. Sure I keep it quiet, I really value being able to hear traffic, but right now, I can't hear the radio's internal speaker at all, and the external doesn't work w/o an amp (currently using the FM radio as the amp).

Many folks here are suggesting that I use a "CB" external speaker. I don't like that idea for several reasons:
1) takes up space in the cabin, which is already a little tight, I'd rather hide everything I can in the dash.
2) would have to be wired to power, preferably filtered. An amp would also have to wired to power, but might have filtering already included, so it could share power with the FM radio.
3) too quiet. My experience with this vehicle and speakers are they are too quiet which leads into...
4) some external speakers don't have a built in amp. THE OUTPUT OF THE CB IS LINE OUT, NOT SPEAKER-DRIVING CURRENT

In response to CBSPARKY about wiring the external CB Speaker to the external stereo and amp...
The *only* amps in the vehicle are the internal amps for the FM radio and the CB radio (for the internal speaker). I tested wiring the external speakers (took the front right [typically I use the passenger seat for my base of operations]), and it was barely audible with the engine off, let alone with the engine on. The output on my CB is line out voltage, not anywhere near the current needed to drive the speakers, so yes, an amp is needed for the speakers, because the CB doesn't power it, even with everything else taken off.

 

in general reply:
external speaker needs to be amped, the radio I'm using doesn't amp the output (it's about as much output as an mp3 player--plenty enough to drive headphones, but not enough to drive a speaker). (see point 5 of the situation)

I'll probably toss in an amp and put a choke filter on it's power in straight from the battery so It sounds good.