Beware of imitators! Why do we sell so many? QUALITY!
Buy genuine RADIODAN made cables! 
NOW in BLACK color! (coupler is creme color but we include a piece of black heat shrink tubing if you wish to use it)

Microphone extension cable for any radio that uses the 6 pin modular RJ-12 plug / jack. I use this on my Yaesu FTM-350 in my truck and another one on my Yaesu FT-8800R at the base station.
The cable is high quality 216" (18 feet) with a male RJ-12 plug professionally crimped on each end. You also get a female to female jack adapter so you can simply unplug your microphone from the radio and plug it into this jack, then plug the extension cable back into your radio.
It is wired as "straight through", meaning pin1 goes to pin 1, pin 2 goes to pin 2, etc. ALL 6 conductors are populated. You can use this with RJ-11 systems as well. RJ-11 uses a 6 pin plug (same as RJ-12) but only the center 4 pins are used. So, this cable works with all RJ-12 or RJ-11 systems.
What I have done and what I see others do is to double sided tape, glue or otherwise mount this adapter anywhere you want to plug your microphone into. Mount (or not) as you see fit.
That would then make a solid location to have your microphone plugged into.

This is especially useful when you mount your radio under the seat or in the glove box or center console, etc.
It is also useful when you have your radio mounted under the shelf of your operating position but want the microphone cord to not lay across the radios or computer screen below!
I know, I created this to solve MY problem! Now I share it with you.

It makes it so much easier to not have to put stress and strain on your microphone cable just because of where you mounted the radio!

We have other lengths of cable available, email and request the length you want and I will reply with an "offer" that you can use to buy if you choose.
I did not make listings for all the possible lengths of cable because each person may want something different.
Can also be used for control head extension on models FT-8800, FT-8900. FT-7800. FT-7900 (and any model that used 6 pin RJ-12 or RJ-11 connector wired straight through)

Need a different length?  SEE MY OTHER LISTINGS!

Any* 6 pin RJ-12 or RJ-11 microphone cable can be extended using this cable including (and others):
Yaesu:
FT-7800R/FT-7800E/FT-7800/FT-8800R/FT-8800E/FT-8800/FT-8900R/FT-8900E/FT-8900/FT-2800M/FT-1802M/FT-1900R/FT-1900E/FT-1900/FT-2900R/FT-2900E/FT-2900/, FTM-350R, mobile radio etc.

Kenwood:
TK-6110K, TK-6110K2, TK-630, TK-705, TK-705D, TK-706, TK-706D, TK-709, TK-7102, TK-7108, TK-715, TK-7150, TK-7160, TK-7180, TK-730, TK-740, TK-750, TK-752, TK-759, TK-760, TK-760G, TK-762, TK-762G, TK-763, TK-763G, TK-768, TK-768G, TK-780, TK-780G, TK-785, TK-805, TK-805D, TK-806, TK-806D, TK-809, TK-8102, TK-8108, TK-815, TK-8150, TK-8160, TK-8180, TK-830, TK-840, TK-841, TK-850, TK-852, TK-859, TK-860, TK-860G, TK-862, TK-862G, TK-863, TK-863G, TK-868, TK-868G, TK-880, TK-880G, TK-885, TK-930, TK-940, TK-941, TK-980, TK-981, TKR-730, TKR-740, TKR-750, TKR-830, TKR-850, TM-261A, TM-271A, TM-461A, TM-471A.

*DOES NOT PROPERLY FIT FTM-100/400 series. Thank Yaesu for making an ODDBALL 6 pin plug/jack for those radios!