Regarding The Kenwood RCA-R70FM DISPLAY

[Razor]

I'm sort of a newbe here, so please bear with me. I am using the Kenwood Music Keg model KHD-CX910 with the RCA-R70FM Modulator & display.
    However, I do not use the modulator for the audio. I only use it for the attachment of the display. I use the RCA ports on the Keg for my audio.
   I would like to be able to add a second display so that I could have a display in two different locations in he car. The display socket to the modulator is an 8 pin (I believe) a Molex connector ? In order to accomplish this, I would need a 2 female/1male 'Y' connector.  Is there any such connector available & does this sound like a feasible venture? One other question: what is the option port on the KHD-CX910 for? I cannot find any info on that whatsoever. Thanks much, for your time..