I am thinking it would be nice to mount amale 5 din plug on the back of the unit, and then connect the preamp via a cable with a female 5 pin din plug on one end, and rca's and ground on the other (preamp) end.
That would be a nice way to do it.
Things to consider with these suspended tables is the way the wiring leaves the tonearm. If it is a big heavy clump of wire, force fit somewhere under the table it will affect the suspension. Using short jumper wire, flexible and all from the tonearm to the DIN plug would be the way I would go. Then with the DIN plug you have your choice of many different high performance phono cables with a captured ground wire. These available for a c-note to thousands of bucks. Key is unrestricted movement of the suspended table.
Magnepan addressed this with the cable for their tonearm using a Amphenol plug to fit the tonearm (proprietary, don't go there) and a flexible 6-8" jumper that was connected to the main phono cable made of low capacitance wiring. You can see the jumper ending in the green plug near the RCA plugs. The connection to the main cable is under the wiring just to the upper left of the twist tie. For this tonearm, that connection was held by a cable support screwed to the underside of the turntable.
You won't need that because you will jump to the DIN plug on the back panel. Beautiful simplicity with that design. If you use a common DIN plug on the tonearm end of the jumper you can swap tonearms.
The wire I found that does a most excellent job of this jumper work is Cardas 33x4 Shielded Tonearm Wire. I found Mogami makes a W2739, 33Gax4 Shielded wire that is perfect, too. Very flexible and with the shield it carries the ground and keeps the EMI and RFI off the signal wires. Two sources are Cardas at partsconnexion in Canada and eBay UK for Mogami (I got no idea if they are the same cable). The bay stuff is way cheaper even with shipping.
Cardas 4 x 33awg Original Series w/Shield Tonearm Wire
Mogami 2739 - Ultraflexible Miniature Cables - 2.1mm OD - 4 Core & Screen | eBay
When I installed this wire, I used the shield as a strain relief, soldering all the signal wires in place with slack in them and soldering the shield wire short so it would take any strain on the wire and keep the 33Ga signal wires from breaking. I needed to change one of the Amphenol connectors in one of my Magnepan arms since the original connector is not repairable and not available. I used a DIN in the arm and at the end of the jumper cable on the original phono cable using the Cardas I believe, as I could not find the W2739 which was recently listed on ebay UK (last few years, someone mentioned it on a board after my discussion of this fix I made.)
As to your choice of Male and Female and where they go, look at phono cables. I would get a standard phono cable since they are generally available and mount the DIN connector needed for that on the table. The Grace tonearms are backwards and finding a phono cable for one is not as easy as getting a normal DIN phono cable.
